OBJECTIVE:To explore the effect and mechanism of baicalin in the treatment of acute lung injury(ALI)by in vivo and in vitro experiments.METHODS:ALI was induced by instilling 10 mg/m L lipopolysaccharide(LPS)into the a...OBJECTIVE:To explore the effect and mechanism of baicalin in the treatment of acute lung injury(ALI)by in vivo and in vitro experiments.METHODS:ALI was induced by instilling 10 mg/m L lipopolysaccharide(LPS)into the airway of rats.Different doses of baicalin(50 and 100 mg·kg^(-1)·d^(-1 ))were administered by gavage one day before modeling.RESULTS:Baicalin significantly reduced the permeability of the alveolocapillary membrane,alleviated tissue injury and inflammatory infiltration,and inhibited the secretion of inflammatory factors and the infiltration of neutrophils.The decline in these inflammations was related to the inhibition of the toll like receptor-4(TLR4)/myeloid differentiation factor 88(My D88)/nuclear factor-kappa B(NF-κB)/nod-like receptor pyrin containing 3(NLRP3)signaling pathway and the mitogen-activated protein kinase(MAPK)signaling pathway.CONCLUSIONS:Baicalin inhibits the secretion of inflammatory factors by inhibiting the TLR4-My D88-NF-κB/NLRP3 pathway and the MAPK signaling pathway.Thus,it reduces lung bronchial epithelial layer,alveolar damage,and pulmonary edema as detected in the in vivo and in vitro experiments.Therefore,baicalin may be a potential preventive and therapeutic drug for ALI.展开更多
OBJECTIVE: To investigate the hemostasis effect of spleen-invigorating, Qi-replenishing and blood-arresting formula, on a zebrafish models with simvastatin-induced hemorrhage, and with symptom pattern caused by spleen...OBJECTIVE: To investigate the hemostasis effect of spleen-invigorating, Qi-replenishing and blood-arresting formula, on a zebrafish models with simvastatin-induced hemorrhage, and with symptom pattern caused by spleen failing to control blood, in terms of theory of Traditional Chinese Medicine(TCM).METHODS: In the first experiment, 60 AB strain wild type zebrafishes were randomly assigned into two groups: normal group and model group. The model group was treated with 50 μM simvastatinfor 24 h. The second experiment: The melanin allele mutated Albino strain zebrafishes were divided into normal, model, A group and B group. The observational parameters were as follows: blood flow, velocity of movement, hemorrhage ratio and improvement ratio of hemorrhage.RESULTS: Hemorrhage ratio: in the first experiment, brain hemorrhage ratio was 75%. In the second experiment, heart hemorrhage ratio was 65%.Blood flow: compared with the normal group,there was a significantly decrease in the model group(P < 0.001). Velocity of movement: in the first experimental, compared with the normal group,there was a significantly decrease in the model group(P < 0.001). Improvement ratio of hemorrhage: agents A had little effect in heart hemorrhage of the zebrafish; agents B could reduce heart hemorrhage ratio of the zebrafish, and increase the improvement ratio of hemorrhage.CONCLUSION: The manifestation of zebrafish model with simvastatin-induced hemorrhage is basically similar to that of the clinical symptom pattern caused by spleen's failure to control blood. The Spleen-invigorating, Qi-replenishing and Blood-arresting Formula can reduce the heart hemorrhage ratio of zebrafish induced by simvastatin, and increase the Improvement ratio of hemorrhage.展开更多
基金Supported by the National Natural Science Foundation of China:Study on the Intervention of Qingjin Huatan Decoction on Hypersecretion of Airway Mucus(81473655)Comparative Study about Intervention of Yupingfeng Powder and Modified Guomin Decoction on Decreased Alveolar Macrophage Phagocytosis and Immune Imbalance Leading to Pulmonary Inflammation Induced by PM2(581673921)。
文摘OBJECTIVE:To explore the effect and mechanism of baicalin in the treatment of acute lung injury(ALI)by in vivo and in vitro experiments.METHODS:ALI was induced by instilling 10 mg/m L lipopolysaccharide(LPS)into the airway of rats.Different doses of baicalin(50 and 100 mg·kg^(-1)·d^(-1 ))were administered by gavage one day before modeling.RESULTS:Baicalin significantly reduced the permeability of the alveolocapillary membrane,alleviated tissue injury and inflammatory infiltration,and inhibited the secretion of inflammatory factors and the infiltration of neutrophils.The decline in these inflammations was related to the inhibition of the toll like receptor-4(TLR4)/myeloid differentiation factor 88(My D88)/nuclear factor-kappa B(NF-κB)/nod-like receptor pyrin containing 3(NLRP3)signaling pathway and the mitogen-activated protein kinase(MAPK)signaling pathway.CONCLUSIONS:Baicalin inhibits the secretion of inflammatory factors by inhibiting the TLR4-My D88-NF-κB/NLRP3 pathway and the MAPK signaling pathway.Thus,it reduces lung bronchial epithelial layer,alveolar damage,and pulmonary edema as detected in the in vivo and in vitro experiments.Therefore,baicalin may be a potential preventive and therapeutic drug for ALI.
基金Supported by National Program on Key Basic Research Program(973 Program)Project(No.2013CB531705)--Study on the Visceral Picture Theory of "Spleen Governs Transportation and Transformation-controls blood"
文摘OBJECTIVE: To investigate the hemostasis effect of spleen-invigorating, Qi-replenishing and blood-arresting formula, on a zebrafish models with simvastatin-induced hemorrhage, and with symptom pattern caused by spleen failing to control blood, in terms of theory of Traditional Chinese Medicine(TCM).METHODS: In the first experiment, 60 AB strain wild type zebrafishes were randomly assigned into two groups: normal group and model group. The model group was treated with 50 μM simvastatinfor 24 h. The second experiment: The melanin allele mutated Albino strain zebrafishes were divided into normal, model, A group and B group. The observational parameters were as follows: blood flow, velocity of movement, hemorrhage ratio and improvement ratio of hemorrhage.RESULTS: Hemorrhage ratio: in the first experiment, brain hemorrhage ratio was 75%. In the second experiment, heart hemorrhage ratio was 65%.Blood flow: compared with the normal group,there was a significantly decrease in the model group(P < 0.001). Velocity of movement: in the first experimental, compared with the normal group,there was a significantly decrease in the model group(P < 0.001). Improvement ratio of hemorrhage: agents A had little effect in heart hemorrhage of the zebrafish; agents B could reduce heart hemorrhage ratio of the zebrafish, and increase the improvement ratio of hemorrhage.CONCLUSION: The manifestation of zebrafish model with simvastatin-induced hemorrhage is basically similar to that of the clinical symptom pattern caused by spleen's failure to control blood. The Spleen-invigorating, Qi-replenishing and Blood-arresting Formula can reduce the heart hemorrhage ratio of zebrafish induced by simvastatin, and increase the Improvement ratio of hemorrhage.
